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Microchip Technology 1N4102-1
- Part No.:
- 1N4102-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4102-1.pdf
- Description:
- DIODE ZENER 8.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,905
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Product details
Overview
1N4102-1 from Microsemi is a 500 mW, 8.7 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANTXV level per MIL-PRF-19500/435, with dynamic impedance of 200 Ω at 250 mA and max reverse current of 0.5 µA at 7.0 V, used for precision voltage regulation in military power supplies and analog reference circuits.
For engineers reviewing the 1N4102-1 datasheet, 1N4102-1 pinout, 1N4102-1 application, or 1N4102-1 equivalent, key selection criteria include Zener voltage tolerance, temperature coefficient (+0.075 %/°C), noise density (1 µV/√Hz), junction-to-lead thermal resistance (250 °C/W), and MIL-qualified reliability level.
Technical Context
The 1N4102-1 operates as a two-terminal shunt voltage regulator, maintaining stable 8.7 V output across load current variations from 1 mA to 6.7 mA while exhibiting low dynamic impedance (200 Ω) and minimal capacitance (typical <2 pF). Its metallurgical bond construction ensures mechanical robustness under thermal cycling.
Designed for high-reliability environments, it supports operation from –65 °C to +175 °C, with linear power derating from 500 mW at 25 °C to zero at 175 °C, and demonstrates radiation hardness per Microsemi MicroNote 050 without external shielding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.7 V at 250 mA test current - defines nominal regulation point with ±5% tolerance over production lot |
| Power Dissipation | 500 mW at 25 °C lead temperature - sets maximum continuous DC power before thermal shutdown risk |
| Dynamic Impedance ZZT | 200 Ω at 250 mA - determines output voltage deviation under load transients (ΔV = Iload × 200 Ω) |
| Reverse Leakage IR | 0.5 µA at 7.0 V - ensures minimal quiescent current draw in standby regulation mode |
| Temp Coefficient αVZ | +0.075 %/°C - quantifies voltage drift magnitude per degree Celsius change in junction temperature |
| Noise Density ND | 1 µV/√Hz - specifies broadband RMS noise floor critical for low-noise analog references |
| Junction Temp Range | –65 °C to +175 °C - enables deployment in aerospace, downhole, and engine-control environments |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by color band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential; establishes bias polarity for Zener conduction |
| Cathode | Regulated output node | Banded end; carries regulated 8.7 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk during thermal shock, extending life in cyclic environments |
| MIL-PRF-19500/435 qualification | Validated performance at JANTXV reliability level including burn-in, temperature cycling, and hermeticity testing |
| Low noise density | 1 µV/√Hz enables use in precision instrumentation references where signal integrity is critical |
| ESD immunity | Non-sensitive per MIL-STD-750 method 1020 - no handling precautions required beyond standard ESD protocols |
| Hermetic glass seal | Prevents moisture ingress and long-term parameter shift in humid or corrosive atmospheres |
Applications
| Aerospace Power Conditioning | Military Analog Reference |
|---|---|
Use Scenario: Regulating auxiliary rail in satellite power distribution units exposed to wide thermal swings and radiation. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 8.7 V for ADC biasing and op-amp feedback networks. Use Value: Maintains regulation accuracy within ±0.5% over –55 °C to +125 °C due to +0.075 %/°C tempco and JANTXV screening. | Use Scenario: Precision voltage reference in field-deployable radar receiver front-end calibration circuitry. IC Role / Device Role / Timing Role: Low-noise Zener element establishing DC offset for RF mixer LO path alignment. Use Value: 1 µV/√Hz noise density prevents spurious sideband generation in sensitive heterodyne architectures. |
| Downhole Sensor Excitation | Avionics Fault Monitoring |
Use Scenario: Supplying excitation voltage to strain-gauge bridges in oil-well logging tools operating at 175 °C ambient. IC Role / Device Role / Timing Role: High-temperature-stable Zener regulator enabling bridge biasing independent of supply fluctuations. Use Value: Full functionality maintained up to +175 °C junction temperature with no parameter degradation or leakage rise. | Use Scenario: Voltage supervision node in flight control computer power monitor detecting undervoltage faults on 10 V rails. IC Role / Device Role / Timing Role: Threshold detector comparing monitored rail against 8.7 V reference via comparator input. Use Value: 0.5 µA reverse leakage ensures negligible loading on sensing network, preserving detection accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4102UR-1 | Same electrical specs, DO-213AA surface-mount package instead of DO-35 axial | Requires PCB rework for SMT assembly; eliminates through-hole mounting and lead-forming steps | Select when automated pick-and-place and board space constraints outweigh manual assembly flexibility |
| 1N4739A | 8.2 V nominal, ±5%, 1 W rating, DO-41 package, non-mil-qualified, commercial grade only | Lacks MIL-PRF-19500/435 qualification and radiation hardness; higher power but looser tempco (+0.05 %/°C) | Select for cost-sensitive industrial designs where JANTXV reliability and extreme temp range are not required |
Compared with 1N4102UR-1 and 1N4739A, the 1N4102-1 uniquely delivers JANTXV-level screening, +175 °C operation, and 1 µV/√Hz noise in an axial DO-35 form factor-making it irreplaceable for legacy-replacement and high-integrity analog subsystems.
Availability
1N4102-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, military analog reference, and downhole sensor excitation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4102-1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and defense-grade analog and mixed-signal components.
The 1N4102-1 belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parameter stability, hermeticity, and environmental survivability are non-negotiable.
FAQ
What is the Zener voltage tolerance for the 1N4102-1?
The 1N4102-1 has a nominal Zener voltage of 8.7 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current. The 1N4102-1 does not offer tighter 2% or 1% tolerances - those are reserved for other part numbers in the series with suffixes 'C' or 'D'.
Is the 1N4102-1 RoHS compliant?
The 1N4102-1 is available in both RoHS-compliant and non-RoHS versions: RoHS compliance is indicated by the 'e3' suffix (e.g., 1N4102-1e3), and applies only to commercial-grade units. JANTXV-qualified 1N4102-1 units are not RoHS compliant, as military specifications require tin-lead plating for enhanced solder joint reliability. Always verify the full part number suffix when ordering the 1N4102-1.
What is the maximum Zener current IZM for the 1N4102-1?
The maximum Zener current IZM for the 1N4102-1 is 6.7 mA, derived from its 500 mW power rating and 8.7 V Zener voltage (IZM = 0.5 W / 8.7 V ≈ 57.5 mA), but limited by thermal constraints and specified directly in the Electrical Characteristics table as 6.7 mA at 25 °C. This value reflects safe continuous operation with 3/8″ lead length and accounts for junction-to-lead thermal resistance of 250 °C/W.
Does the 1N4102-1 have radiation hardness certification?
Yes, the 1N4102-1 is inherently radiation hard as documented in Microsemi MicroNote 050, a publicly available technical note confirming total ionizing dose (TID) survivability and single-event effect (SEE) resilience consistent with JANS-level qualification. This radiation hardness stems from its metallurgically bonded glass construction and is validated across the entire 1N4099–1N4135 family, including the 1N4102-1.
Can the 1N4102-1 be used in surface-mount designs?
The 1N4102-1 itself is axial-leaded DO-35 and not surface-mount compatible. However, Microsemi offers the functionally identical 1N4102UR-1 in DO-213AA surface-mount package - same 8.7 V Zener voltage, ±5% tolerance, and JANTXV qualification. The 1N4102UR-1 is the direct surface-mount alternative, and both share identical electrical characteristics per the T4-LDS-0245-2 datasheet.
1N4102-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.7 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4102-1 FAQ
1.How can I place an order for 1N4102-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4102-1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N4102-1 reliable?
The price and inventory of 1N4102-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4102-1 is usually 5 days.
3.What payment methods are accepted for 1N4102-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4102-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4102-1?
1N4102-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4102-1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N4102-1?
For technical support, including 1N4102-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4102-1 requirements.
6.How does Aetrix verify that 1N4102-1 is sourced from the original manufacturer or authorized distributors?
All 1N4102-1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N4102-1 meets industry standards.
7.What is the process for return or replacement of 1N4102-1?
All 1N4102-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4102-1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N4102-1 part is unused and in its original packaging.
Return procedure for 1N4102-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4102-1 Tags
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